UPDATE: TMZ is reporting that Stephanie Pratt was only “a little” drunk, saying:

We’ve learned the “Hills” star took two breathalyzer tests after she was pulled over in Hollywood early Sunday morning. The first was .08, the second was a .09.

The legal limit in California is .08.

She was not stopped because she was driving erratically, but because of an equipment violation.

As we first reported, Pratt felt the cops were lying in wait for her as she left a club in Hollywood.

Pratt was held on $5,000 bail and released Sunday afternoon.

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As if being Spencer Pratt’s sister wasn’t bad enough, Stephanie Pratt who has found fame from MTV’s The Hills was arrested Sunday morning for suspicion of driving under the influence after leaving Holly Montag’s birthday party.

TMZ reports that the arrest took place around 3:45 am. A DUI is definitely not a fun way to end the weekend.

When will Hollywood learn not to drink and drive? Maybe we’ll have to compile a “celeb dui’s” list to get their attention.